Electronics Mock Papers

Compilation of semester exam level questions in Electronics on following topics. INTRODUCTION - approximations, Thevenin’s theorem, Norton’s theorem. SEMICONDUCTORS - intrinsic and extrinsic semiconductors, doping, forward and reverse bias, breakdown, barrier potential. DIODES - ideal and approximate, bulk resistance, DC load line, half-wave, full-wave, and bridge rectifier, transformer, capacitor-input filter, clippers and limiters, clampers, voltage multipliers, Zener diode, Schottky diode. BJT - collector, base, and emitter curves, current gain, load line, operating point, saturation, emitter bias, voltage-divider bias, two-supply emitter bias, other biases, PNP transistors, diode AC resistance, CE amplifier, T and π models, voltage gain, input impedance, swamping, multistage amplifier, CC amplifier, output impedance, cascading, Darlington connection, CB amplifier, class-A power amplifier, class-B push-pull emitter follower, class-AB driver, DC and AC differential amplifier, common-mode gain, current mirror, frequency response, decibel power and voltage gains, impedance matching, bode plots. JFET - drain and transconductance curves, biasing in Ohmic and active regions, JFET amplifiers and analog switches. OP-AMP - IC 741, inverting and non-inverting amplifiers, summer and voltage follower, negative feedback, VCVS, ICVS, VCIS, and ICIS amplifiers, bandwidth and slew rate, low-pass, high-pass, bandpass, bandstop, and all-pass filters, comparators, hysteresis, integrator, waveform converter and generator, differentiator, Wien-bridge oscillator, 555 timer, astable and monostable multivibrator. DIGITAL ELECTRONICS - Logic gates, Boolean algebra, Karnaugh maps, flip-flops, shift registers, adders, counters, analog to digital converters and digital to analog converters.